Clamp



FIG. 1 is a perspective view of a clamp showing my new design, as seen from the rear and one side, with the opposite side being a mirror image;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof but to a slightly smaller scale to that of FIGS. 1-3; and

FIG. 5 is a bottom plan view thereof, also to a slightly smaller scale than FIGS. 1-3. 

The ornamental design for a clamp, substantially as shown and described. 